ceph/src/boost/boost/gil/detail/type_traits.hpp

   1 //
   2 // Copyright 2017-2019 Peter Dimov.
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 #ifndef BOOST_GIL_DETAIL_TYPE_TRAITS_HPP
   9 #define BOOST_GIL_DETAIL_TYPE_TRAITS_HPP
  10
  11 #include <boost/config.hpp>
  12
  13 #include <type_traits>
  14
  15 namespace boost { namespace gil { namespace detail {
  16
  17 #if defined(BOOST_LIBSTDCXX_VERSION) && BOOST_LIBSTDCXX_VERSION < 50100
  18
  19 template<class T>
  20 struct is_trivially_default_constructible
  21     : std::integral_constant
  22     <
  23         bool,
  24         std::is_default_constructible<T>::value &&
  25         std::has_trivial_default_constructor<T>::value
  26     >
  27 {};
  28
  29 #else
  30
  31 using std::is_trivially_default_constructible;
  32
  33 #endif
  34
  35 using std::is_trivially_destructible;
  36
  37 }}} //namespace boost::gil::detail
  38
  39 #endif